• Use of biosolids and its main component as frothers and collectors for the concentration of copper sulphide ores. Reyes-Bozo, L., Godoy-Faúndez, A., Salazar, J.L., Valdés-González, H., Vyhmeister, E., Herrera-Urbina, R. PROCEEDINGS of the 6th International Conference on Sustainable Development in the Minerals Industry, 1-3 July 2013. Milos Island, Greece. (PROCEEDING PAPER)

• Use of biosolids and its main component as frothers and collectors for the concentration of copper sulphide ores. Reyes-Bozo, L., Godoy-Faúndez, A., Salazar, J.L., Valdés-González, H., Vyhmeister, E., Herrera-Urbina, R. 6th International Conference on Sustainable Development in the Minerals Industry, 1-3 July 2013. Milos Island, Greece, 2013